産業 さんぎょう技術 ぎじゅつじゃありませんでした
sangyōgijutsujārimasendeshita

Noun
Desu Copula

The polite, past negative form of 産業技術

1. Was not industrial technology.; Was not a skill/technique related to industry.

Past/Perfective
Negative
Polite
Terminal Form